Challenge page : http://www.ancientsocieties.com/tip-of-the-spear/
The text Challenge says Choose to first Blaise a path to arrange the beginning of the answers, and then it shall become clear.
The picture of the challenge gives us a list of numbers :
13 16 6 25 17 15 21 23 1 6 17 16 23 25
This can be converted to :
m p f y q o u w a f q p w y
With 1=A, 2=B, …
And the Challenge text gives the instructions of what to do :
– Blaise is for Vigenere Cypher
– The beginning of the answers are the first letters of the week answer names
The week answers and the Philanthropist full name are :
D1 : HERSHEY : Milton Hershey
D2 : VANDERBILT : Cornelius Vanderbilt
D3 : DIANASPENCER : Diana Spencer
D4 : GANESHDUTT : Ganesh Dutt
D5 : CLARABROWN : Clara Brown
The first letters of the names are : MCDGC
Using a Vigenere tool, like http://rumkin.com/tools/cipher/vigenere.php to decode mpfyqouwafqpwy with the passphrase MCDGC will give us the solution.
The solution is ancsocstudents
The solution page is http://stl.la/ancsocstudents, this page is redirected to http://www.ancientsocieties.com/pramik-sanning/